Submission Date

4-28-2025

Document Type

Paper- Restricted to Campus Access

Department

Physics & Astronomy

Second Department

Mathematics

Adviser

Casey Schwarz

Committee Member

Casey Schwarz

Department Chair

Casey Schwarz

External Reviewer

Rashi Sharma

Distinguished Honors

This paper has met the requirements for Distinguished Honors.

Project Description

Chalcogenide glasses (ChGs) are used for their optical properties in the infrared spectrum. The optimization of crystal phases in Ge-As-Pb-Se (GAP-Se) glass can be done through heat treatments. Using differential scanning calorimetry (DSC) and X-ray diffraction (XRD), particular nucleation and growth temperatures for crystal growth are identified. This is done by analyzing a theoretical 0°C/min heating rate in the thermal analysis to identify the temperatures. By optimizing the high-index PbSe phase, we can spatially control the refractive index, making a gradient refractive index (GRIN) glass using laser writing.

Comments

This project was funded by a DARPA grant awarded to the University of Central Florida.

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